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Permoconcha

Gastropoda - Murchisoniina - Portlockiellidae

Taxonomy
Permoconcha was named by Licharev (1967).

It was assigned to Portlockiellidae by Mazaev (2015).

Species
P. conica, P. ferganica, P. minutula, P. tabulata
Entered
by M. Clapham on 2015-11-24; modified by M. Clapham on 2021-06-23

Synonymy list
YearName and author
1967Permoconcha Licharev
2015Permoconcha Mazaev p. 888

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassOrthogastropoda
orderMurchisoniina
superfamilyEotomarioidea
familyPortlockiellidae
genusPermoconcha

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Permoconcha Licharev 1967
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†Permoconcha conica Batten 1958
†Permoconcha ferganica Licharev 1967
†Permoconcha minutula Mazaev 2015
†Permoconcha tabulata Batten 1958
Diagnosis
ReferenceDiagnosis
A. V. Mazaev 2015Shell trochiform. Lateral surface moderately convex or flattened at top, gradually joining basal surface. Slit relatively narrow and shallow, located in lower region of lateral surface. Selenizone indiscernible, lacking lunules, ornamented either as the rest of shell surface or ornamentation of selenizone different in thickness; sometimes, selenizone surface slightly depressed. Interspaces not wider than spiral ribs. Umbilicus absent.
Measurements
partNmeanminimummaximummedians.d.
shell height374.171.509.714.061.65
shell diameter373.702.007.973.341.43

Composition: aragonitef
Ribbing: minorf
Environment: coastal, marineo
Locomotion: slow-movingf
Life habit: epifaunalf
Diet: detritivoref
Vision: limitedf
Created: 2025-08-08 09:24:42
Modified: 2025-08-08 09:24:42
Source: f = family, o = order
References: Bambach et al. 2007, Wagner 2023

Age range: base of the Asselian to the top of the Roadian or 298.90000 to 266.90000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Asselian298.9 - 293.52Russian Federation (Bashkortostan) P. ferganica (202159)
Artinskian290.1 - 283.3USA (Texas) Shansiella conica (101773) Shansiella tabulata (90007 101769)
Kungurian283.3 - 274.4USA (Texas) Shansiella tabulata, Shansiella conica (101776)
Roadian274.4 - 266.9Russian Federation (Kirov) P. minutula (126334 170190)